Why fly halfway around the world when you can find feisty great whites just south of the border--and just off California.

Deepwater Blues (Pacific blue sharks)

The boat looks generally battered and unpainted. A captain might be careless about the cosmetic appearance of his boat, but fastidious about maintaining his pumps and filters. More likely, if he neglects what the customers can see, he neglects ...

If you only photograph the reef when the sun's out, you're missing half the fun.

Submit your photos for Photographer of the Week Ben Poch Congratulations Ben Poch on ...

Submit your photos for Photographer of the Week Paul Gray Congratulations Paul Gray on ...

Prescription meds may save your health, but can they wreck your dive?

#8 He quivers every time he hears the word "tank."

Plus answers to your questions about heart conditions and ear pains. Other questions covered: Did Decompression Sickness Cause My Exhaustion? Can DCS Cause Strokes? Can a Person Recover from Paralysis Caused by DCS?